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    <h1 class="post-title"><a class="post-link" href="/post/thread3/">线程同步2</a></h1>
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      <span class="post-time"> 2019-12-09 </span>
      
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      <h1 id="线程同步2">线程同步2</h1>
<p>时间锁</p>
<div class="highlight"><div class="chroma">
<table class="lntable"><tr><td class="lntd">
<pre class="chroma"><code><span class="lnt">1
</span><span class="lnt">2
</span><span class="lnt">3
</span></code></pre></td>
<td class="lntd">
<pre class="chroma"><code class="language-fallback" data-lang="fallback">#include &lt;pthread.h&gt;
#include &lt;time.h&gt;
int pthread_mutex_timedlock(pthread_mutex_t * restrict mutex, const struct timespec *restrict tsptr);
</code></pre></td></tr></table>
</div>
</div><p>愿意等待timespec描述的时间，达到时间返回错误码ETIMEOUT
一个例子</p>
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    <h1 class="post-title"><a class="post-link" href="/post/thread4/">线程同步3</a></h1>
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      <span class="post-time"> 2019-12-09 </span>
      
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      <h1 id="线程同步3">线程同步3</h1>
<p>使用条件变量进行线程同步</p>
<div class="highlight"><div class="chroma">
<table class="lntable"><tr><td class="lntd">
<pre class="chroma"><code><span class="lnt">1
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<td class="lntd">
<pre class="chroma"><code class="language-c" data-lang="c"><span class="cp">#include</span> <span class="cpf">&lt;pthread.h&gt;</span><span class="cp">
</span><span class="cp"></span><span class="kt">int</span> <span class="n">pthread_cond_init</span><span class="p">(</span><span class="n">pthread_cond_t</span> <span class="o">*</span><span class="kr">restrict</span> <span class="n">cond</span><span class="p">;</span>
                                   <span class="k">const</span> <span class="n">pthread_condattr_t</span> <span class="o">*</span><span class="kr">restrict</span> <span class="n">attr</span><span class="p">);</span>
<span class="kt">int</span> <span class="nf">pthread_cond_destroy</span><span class="p">(</span><span class="n">pthread_cond_t</span> <span class="o">*</span><span class="n">cond</span><span class="p">);</span>
<span class="kt">int</span> <span class="nf">pthread_cond_wait</span><span class="p">(</span><span class="n">pthread_cond_t</span> <span class="o">*</span><span class="kr">restrict</span> <span class="n">cond</span><span class="p">,</span>
                                     <span class="n">pthread_mutex_t</span> <span class="o">*</span><span class="kr">restrict</span> <span class="n">mutex</span><span class="p">,</span>
                                     <span class="k">const</span> <span class="k">struct</span> <span class="n">timespec</span> <span class="o">*</span><span class="kr">restrict</span> <span class="n">tsptr</span><span class="p">);</span>
</code></pre></td></tr></table>
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    <h1 class="post-title"><a class="post-link" href="/post/thread1/">线程的创建及退出</a></h1>
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      <span class="post-time"> 2019-12-09 </span>
      
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      <h1 id="线程的创建及退出">线程的创建及退出</h1>
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    <h1 class="post-title"><a class="post-link" href="/post/iostreamiterator/">输入输出流迭代器</a></h1>
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      <span class="post-time"> 2019-12-09 </span>
      
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      <h1 id="输入输出流迭代器">输入输出流迭代器</h1>
<h2 id="istream_iterator">istream_iterator</h2>
<ul>
<li>创建一个istream_iterator，然后把它绑定到一个流</li>
<li>如果默认初始化，则是一个尾后值的迭代器</li>
</ul>
<h2 id="ostream_iterator">ostream_iterator</h2>
<div class="highlight"><div class="chroma">
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<pre class="chroma"><code><span class="lnt">1
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<pre class="chroma"><code class="language-fallback" data-lang="fallback">ostream_iterator&lt;T&gt; out(os)  //out将类型为T的值写到os流中
ostream_iterator&lt;T&gt; out(os, d)  //out将类型为T的值写到os流中，且在后面加上字符串d
</code></pre></td></tr></table>
</div>
</div><p>有了输入输出流迭代器，我们可以把输入输出流当作容器来使用，在拷贝，初始化等等有和容器操作相同的形式，代码比较好看</p>
<p>例子</p>
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    <h1 class="post-title"><a class="post-link" href="/post/bind/"></a></h1>
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      <span class="post-time"> 2019-12-08 </span>
      
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    <div class="post-summary">
      <h1 id="bind">bind</h1>
<blockquote>
<p>auto g = bind(f, arg_list)</p>
</blockquote>
<p>用我自己的话来说，就是把原来函数f的参数重新安排，可以直接绑定值，也可以使用占位符placeholder，达到减少参数或者调换参数顺序的作用。</p>
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